Overview
The LEADTOOLS PDF plug-in has the following import capabilities:
- Loads PDF 1.4 files
- Loads PostScript Language Level 3 files
- Loads EPS files
- Support is provided for loading the entire document or a specified set of sequential pages
The plug-in provides a number of options for controlling the rasterization± of the page, including:
- Pixel depth - Valid values are 1,4,8 and 24
- Horizontal resolution in dots per inch
- Vertical resolution in dots per inch
- Ability to use fonts installed by the plug-in or system fonts
- Font anti-aliasing - Valid values are 1-bit(no anti-aliasing) , 2-bit and 4-bit
- Graphics anti-aliasing - 1-bit , 2-bit and 4-bit
Saving Capabilities
Full multi-page write support is provided by this module for the PDF format. You can append, insert, replace or delete a specified page in the generated PDF file.
The plug-in gives you a wide range of control options for the resulting image data in terms of compression. These include:
- No compression, where the image is embedded inside the file without any compression
- Compressed using CCITT Group 3, 1 dimension. For 1-bit images
- Compressed using CCITT Group 3, 2 dimensions. For 1-bit images
- Compressed using CCITT Group 4. For 1-bit images
- JPEG compression and YUV 4:4:4 color space loss-less. Bits per pixel: 8 for grayscale, 24 for color
- JPEG compression and YUV 4:2:2 color space. Bits per pixel: 8 for grayscale, 24 for color
- JPEG compression and YUV 4:1:1 color space. Bits per pixel: 8 for grayscale, 24 for color
- JBIG2 compression. Bits per pixel: 1
The plug-in also gives you control over the type of encoding to be used in order to change compressed image data into a text encoded format. The text encoding techniques include:
- No text encoding at all.
- Use ASCII 85 text encoding algorithm
- Use ASCII HEX text encoding technique
Encryption/Decryption
- RC4 40-bit key encryption
- RC4 128-bit key encryption
Support for User password, Owner password permissions.
